JP3222688U - Foot nail sharpener - Google Patents

Abstract

An object of the present invention is to provide a toe nail sharpening machine capable of shaving toes with an easy posture. A foot-only nail shaving machine 1 comprising a long main body and a head 3 to which a polishing section is attached. The user can bring the polishing part into contact with the toenails in an easy posture, and can sharpen the toenails in an easy posture while visually checking the polished part of the nails. [Selection] Figure 1

Description

  The present invention relates to a foot-only nail sharpener for both hand and foot.

  Tools for cutting / shaving / shaving nails of limbs (so-called nail clippers) have been used for more than 1000 years. In Japan, the appearance of nail clippers and nippers is about 100 years ago, and the most popular clipper nail clippers are said to be about 80 years ago. The operation of cutting the toenail with these nail clippers is not easy for elderly people or persons with disabilities who are not easy to operate and posture, such as tilting the upper body forward, bending the legs, and pulling the legs to the upper body. For this reason, problems such as hurting the skin by pinching the nails without fully recognizing the toes and the hands, and being unable to cut the nails to the desired length frequently occur. Since the nail cutting blade does not follow the shape or gap of the deformed or hardened nail, it may be difficult to cut the nail itself.

  A dedicated nail clipper is used as a tool for easily and quickly shaving the left and right hand nails regardless of the dominant hand. Today, a foot-only nail clipper that is easy to carry is common. Such a portable foot-only nail clipper basically consists of a power switch, a battery, a motor, a motion conversion mechanism, and a polishing unit. During use, the polishing unit operates at high speed in conjunction with the drive of the motor. Vibrate or rotate. The user scrapes the nail surface by bringing the polishing unit that vibrates or rotates into contact with the nail surface.

For example, reference 1 (utility model registration No. 3218108), reference 2 (special table 2018-524094), reference 3 (utility model registration No. 3177512) are described as easy-to-carry foot-only nail shaving machines. All of these are battery powered and can be carried anywhere, anytime. In either case, it is assumed that the nail sharpening machine held with one hand is used in contact with the other finger.
The nail sharpening machine described in the above-mentioned document 1 mainly assumes finger nail sharpening. If this is used for a toenail, it is difficult to see the state of polishing because the toenail or head is hidden by the gripped hand or handle, or the hand and foot are brought close to each other as in the above nail clippers. Therefore, there is a problem that long-time nail sharpening is painful. Although it is described in the above-mentioned document 2 that the toenails can be polished, it is clear that the same problem as in the document 1 occurs in the typical example shown in the drawing. Thus, the portable foot-only nail sharpener is also not a useful tool for toe-shaving.

  There have been several proposals for a foot-only nail shaving machine that has attempted to solve the problems of toenail shaving. In the nail sharpening machine described in Document 3 (Japanese Patent Laid-Open No. 2014-180493), the nail sharpening machine can be moved in a narrow space between the nail and the nail by separating the main body and the battery housing. However, even in this case, as long as the small body is gripped by hand and the nail clipper is moved, the toenails and head are hidden by the gripped hand and body, making it difficult to see the polishing, or it is impossible to bring the hands and feet close together The problem remains that it is painful for a long time to sharpen nails. Document 4 (International Publication No. WO2010 / 064380) describes providing slits and corners that are convenient for polishing toenails in the polishing portion. In the typical example shown in the drawing, the polishing portion and the main body are described. Since the grip part is close to the hand, the hand and the foot are brought close to each other and the posture becomes unreasonable, so that the problem that long-time nail shaving is painful is not solved.

  Document 5 (Japanese Patent Laid-Open No. 2004-436) describes a nail sharpening device that sharpens and polishes the toenails in an easy posture without damaging the fingertips. In this nail sharpening device, a foot is placed on a support plate, and a polishing machine is brought into contact with the toenails with the toe tip covered with a protective plate. Certainly, when using this nail sharpening device, it is not necessary to bring the feet and hands close to each other, and the contact point between the polishing machine and the toes is clearly visible. However, such a nail sharpening device is large and not suitable for carrying. Further, there is a problem that the operation itself of such a nail sharpening device is complicated.

  Thus, a small and convenient foot-only nail clipper that anyone can operate while looking at the polished part in an easy posture has not been known yet.

Utility Model Registration No. 3218108 Special table 2018-524094 gazette JP 2014-180493 A International Publication WO2010 / 064380 Pamphlet JP 2004-436 A

  Therefore, the inventor sought a foot-only nail shaving machine that anyone could operate while looking at the polished part in an easy posture.

As a result, the inventor succeeded in solving the problem with the following simple structure.
(Invention 1) A foot-only nail shaving machine consisting of a long main body and a head with a polishing part.
(Invention 2) The length of the main body is fixed so that the main body and the fixed-length head are integrally fixed, or the user holding the main body touches the nail of the toe in a comfortable posture. The foot-only nail clipper of Device 1 that can adjust the angle.
(Invention 3) The foot-only nail shaving machine according to Invention 1 or 2, wherein the length of the main body can be adjusted by any one of connection and removal of an attachment member, feeding or enclosing of a nesting member, and movement of a slide member.
(Invention 4) The nail shaving machine for foot according to any one of Inventions 1, 2 and 3, comprising a polishing portion made of a glass file.
(Invention 5) The nail clipper for exclusive use of the foot according to any one of Inventions 1, 2, 3 and 4, wherein the driving power of the head is supplied by a power cable, a charger and a battery.

  The foot-only nail shaving machine of the present invention demonstrates excellent performance in foot nail shaving. The user of the foot-only nail sharpener of the present invention can safely remove his toenails in an easy posture.

The usage condition of an example of the nail clipper for exclusive use of a foot of this invention is shown typically. The head of an example of the nail clipper for exclusive use of the present invention is shown typically. An example of a foot-only nail sharpener of the present invention is schematically shown.

  The foot-only nail shaving machine of the present invention comprises a long main body and a head. A polishing part is attached to the head. The “long” in the present invention is much longer than the main body of the conventional nail sharpener, specifically, the user touches the nail of the foot trying to cut the head without difficulty while holding the main body. It means the length that can be. In other words, the “long” of the present invention is longer than the length assumed in the conventional limb nail polisher, and the conventional nail polisher that was supposed to be applied exclusively to fingers Unnecessary length. In this sense, the “long body” in the present invention is a feature that distinguishes the prior art from the present invention, and “long” is a clear definition in view of well-known techniques in this technical field.

The user brings the polishing part into contact with the toenails while holding the main body. The polishing section moves at a high speed when the head is driven by a motor.
In the present invention, a long main body of a certain length may be integrated with the head, or the length of the long main body may be adjustable. The foot-only nail shaving machine of the present invention is also epoch-making in that it can take a form in which the length of the main body can be adjusted. In the present invention, the length of the main body is made “long” specialized for shaving the toes, so that the user can bring the polishing part into contact with the toenails while holding the main body in a comfortable posture. .

  The mechanism for adjusting the length of the main body is not limited as long as the strength and operability of the main body, ease of gripping, and a certain degree of design can be ensured. For example, connection or removal of the attachment member, feeding or sealing of the nesting member, movement of the slide member, or the like is used. When such an adjusting mechanism is not used, it is convenient to carry and store it when it is downsized when not using the inventive foot-only nail shaving machine.

  In the case of adjusting the length of the main body by connecting or removing the attachment member, for example, a plurality of attachment members are prepared as the main body member. In this example, the user selects the number of attachment members in accordance with the nail shaving site and the posture sensation, and grips a long main body to which necessary members are connected.

  When adjusting the length of the main body by feeding or enclosing the nesting member, for example, a plurality of tubular members having different inner diameters can be combined and other tubes can be accommodated inside the tube having the maximum inner diameter. The tube can be extended toward the end of the outer tube, and each tube can be fixed in the extended state. In this example, the user grips the long main body at a position corresponding to the nail sharpening part and the posture sense.

In the case of adjusting the length of the main body by moving the slide member, for example, the main body is constituted by long members that slide with each other with a stopper. In this example, the user slides the long members according to the part of the nail clipper and the posture sensation, and grips the long main body having an appropriate length.
FIG. 1 schematically shows the structure of the foot-only nail shaving machine (1) of the present invention in which the length of the main body (2) is the longest. The foot-only nail sharpener (1) includes a main body (2) and a head (3), and an arrow indicates the direction of movement of the head (3). The body (2) includes a portion (extension member, 5) extended by suitable means. In FIG. 1, the upper surface of the head (3) is shown, and the polishing section attached to one side of the head (3) is not shown. The shape and size of each member are merely examples, and the features of the present invention are not limited by FIG. Such a foot-only nail sharpener is suitable for nail sharpening of the toes (6). The user grasps the main body (1), brings the head (3) close to the toes (4), and touches the nail (6) with the polishing part that moves fast with the head (3). Can do. The user can sharpen the nail in an easy posture while visually checking the positional relationship between the toes (6) and the head (3) and the polished part of the nail by grasping the main body (2) at an appropriate position. it can.

The material of the main body is not limited as long as the operability of the main body is not impaired. Generally, a general-purpose plastic having a relatively small specific gravity and excellent moldability is used as a main material. The main body portion can also be decorated by adding a colorant, printing, vapor deposition, adhesion of a decorative member, or the like.
FIG. 2 schematically shows a state in which the polishing part (7) is attached to the head (3) in the foot-only nail sharpener of the present invention. It is the state which looked at the head (3) and the grinding | polishing part (7) from the side surface. The lower side is a polishing part (7). The shapes and sizes of the head (3) and the polishing part (7) are merely examples, and the features of the present invention are not limited by FIG.

  The shapes of the head and the polishing part are not limited as long as the operability of the foot-only nail sharpener of the present invention is not impaired. For safety, the shape of the head and the tip of the polishing part is preferably a round shape. By using such a rounded shape, the head and the polishing unit can cut the nail without damaging the toes. For operability, it is preferable that the head and the polishing portion have, for example, a tapered shape. By using such a tapered shape, the tip of the polishing portion can be brought into contact with the end of the nail, and a small portion of the toe can be shaved.

The structure and abrasive of the polishing part of the foot-only nail sharpener of the present invention are not limited. The structure may be any of plate-like, cloth-like, and non-woven fabrics, and natural materials such as various ceramics, metals, and woody materials can be used as the abrasive.
One example of the polishing portion of the present invention is a glass file. The glass file has a polished surface formed on at least a part of plate-like glass. Since the glass file is thin and easy to cut into a shape that matches the surface shape of the head, the head and the polishing portion can be made compact. The Mohs hardness of glass is about 5, and the Mohs hardness of human nails is about 2.5. Therefore, when the polishing portion that moves at high speed comes into contact with the surface of the nail, only the nail is polished, and the glass file constituting the polishing portion is hardly deformed or worn.

  The polishing effect of the glass file depends on the uneven shape, that is, the depth of the unevenness and the interval between the unevennesses. The degree of such irregularities can be quantified as “surface roughness”. A glass file having a large surface roughness acts as a so-called “coarse” abrasive. A glass file having a large surface roughness serves as a so-called “fine” abrasive. Generally, a glass file having various surface roughnesses defined in JIS B 0031 and JIS B 0601 having a surface roughness of 10 μm or more and 100 μm or less can be used. In the present invention, a glass file provided with a metal layer such as chromium on the surface can also be used. The metal layer is formed by a vapor deposition method or the like.

  In the present invention, the method for attaching the polishing part to the head is not limited. In general, a method of fitting a polishing portion into a frame provided on the head, a method of bonding one side of the head and a flat surface of a glass file with a curable adhesive, and the like are common.

  The head may be replaceable in the present invention. The user can select an optimum head according to the stage of the nail cutting from the head attached with the polishing portion having a different surface roughness.

The direction of movement of the head of the present invention is not limited as long as it is a direction and period suitable for nail cutting of the polishing portion. That is, it may be a reciprocating motion in a direction connecting the tip of the head and the end of the main body, a reciprocating motion in the width direction of the head, or these may be switched as appropriate.
A cover for protecting the head and a case for storing the whole can also be attached to the foot-only nail clipper of the present invention.

  There are no limitations on the method of driving the motor and supplying power to control the movement of the head of the present invention, as long as it can be adopted in a normal foot-only nail sharpener. Motors and power switches, batteries, chargers, power cables, etc. that can be used for a dedicated nail clipper are used.

  FIG. 3 schematically shows the internal / external structure of a dry cell type nail clipper (1) for a foot according to the present invention. The extension member that makes the length of the main body variable is omitted. The shape and size of each member are merely examples, and the features of the present invention are not limited by FIG. The foot-only nail sharpener (1) includes a main body (2) and a head (3), and a polishing part (7) is attached to the head (3). A motion conversion mechanism (10) including a battery (8), a motor (9), a shaft (101, 102) and a gear (103, 104) is built in the main body (2), and a removable cover (11, 12).

  When the length of the long main body can be adjusted in the foot-only nail shaving machine of the present invention, the length of the main body can be increased by at least 5 cm, generally 10 cm or more from the shortest state. The user should hold the extended body in an appropriate posture (for example, sitting in a chair, cross-legged, sitting on the floor and stretching his / her legs forward), and head to the toes without greatly bending forward. The head position can be maintained and moved with an easy posture.

  The point that the main body of the dedicated nail clipper in the present invention is variable may not have been a technically difficult change in retrospect, but has not been studied at all in the prior art. In the present invention, the nails of the foot in an easy posture are made possible by such a simple but revolutionary structure improvement. The position of the present invention with respect to the prior art can be said to be "columbus eggs", which is "an idea that anyone can be convinced that it is easy, but no one can come up with until it is taught". The invention provides a dramatic improvement to the nail sharpener.

  The foot-only nail shaving machine of the present invention can provide a product that meets the needs of consumers who demand compact, high-performance, low-cost home appliances. The foot-only nail sharpener of the present invention can be noted as a form of universal design home appliance.

DESCRIPTION OF SYMBOLS 1 Foot exclusive nail sharpener 2 Main body 3 Head 4 Foot 5 Extension member 6 Foot nail 7 Polishing part 8 Battery 9 Motor 10 Motion conversion mechanism 101 Axis 102 Axis 103 Gear 104 Gear 11 Cover 12 Cover 13 Power switch

An electric nail sharpener is used as a tool for easily and quickly shaving the left and right hand nails regardless of the dominant hand. Today, an electric nail clipper that is easy to carry is common. Such a portable electric nail sharpener basically consists of a power switch, a battery, a motor, a motion conversion mechanism, and a polishing unit. When used, the polishing unit vibrates at high speed in conjunction with the drive of the motor. Or rotate. The user scrapes the nail surface by bringing the polishing unit that vibrates or rotates into contact with the nail surface.

Examples of electric nail shaving machines that are easy to carry are described in Document 1 (Utility Model Registration No. 3218108) and Document 2 (Special Table 2018-524094 ) . All of these are battery powered and can be carried anywhere, anytime. In either case, it is assumed that the nail sharpening machine held with one hand is used in contact with the other finger.
The nail sharpening machine described in the above-mentioned document 1 mainly assumes finger nail sharpening. If this is used for a toenail, it is difficult to see the state of polishing because the toenail or head is hidden by the gripped hand or handle, or the hand and foot are brought close to each other as in the above nail clippers. Therefore, there is a problem that long-time nail sharpening is painful. Although it is described in the above-mentioned document 2 that the toenails can be polished, it is clear that the same problem as in the document 1 occurs in the typical example shown in the drawing. As described above, the portable electric nail sharpener is also not a useful tool for the toenail sharpening.

Claims (5)

A dedicated nail clipper consisting of a long main body and a head with a polishing part. The main body and the head of a certain length are fixed integrally, or the length of the main body is adjusted so that the user holding the main body touches the nail of the toe with a comfortable posture. The foot-only nail shaving machine according to claim 1, wherein The foot-only nail sharpener according to claim 1 or 2, wherein the length of the main body can be adjusted by any one of connection or removal of an attachment member, feeding or sealing of a nesting member, and movement of a slide member. The foot-only nail shaving machine according to any one of claims 1, 2, and 3, further comprising a polishing portion made of a glass file. The foot-only nail clipper according to any one of claims 1, 2, 3, and 4, wherein the driving power of the head is supplied by a power cable, a charger, and a battery.

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